package cn.kooki.app.duobao.util;

import java.security.MessageDigest;

public class MD5 {
	public static void main(String[] args) {
		encryptMD5("123456");
	}
	//MD5���ܣ�32λ  
    public static String encryptMD5(String str)
    {  
        MessageDigest md5 = null;
        try  
        {  
            md5 = MessageDigest.getInstance("MD5");
        }catch(Exception e)
        {  
            e.printStackTrace();  
            return "";  
        }  
          
        char[] charArray = str.toCharArray();  
        byte[] byteArray = new byte[charArray.length];  
          
        for(int i = 0; i < charArray.length; i++)  
        {  
            byteArray[i] = (byte)charArray[i];  
        }  
        byte[] md5Bytes = md5.digest(byteArray);  
          
        StringBuffer hexValue = new StringBuffer();
        for( int i = 0; i < md5Bytes.length; i++)  
        {  
            int val = ((int)md5Bytes[i])&0xff;  
            if(val < 16)  
            {  
                hexValue.append("0");  
            }  
            hexValue.append(Integer.toHexString(val));
        }  
        return hexValue.toString();  
    } 
}
